Drying plant



P. BARDUCCI Feb. 1926.

DRYING PLANT Filed Feb. 1 1922 Bare/acc Patented Feb. 2, 1926.

UNITED STATES 1,571,227 PATENT OFFICE.

PILADE BARDUCCI, 0F MILAN, ITALY.

DRYING PLANT.

Application filed February 18, 1922. Serial Ito. 537,495.

To all whomz't may concern:

Be it known that I, PILADE BARDUOCI, a

subject of the King of Italy. and resident of Milan, Italy, have invented certain new and useful Improvements in Drying Plants, of which the following is a specification.

The present invention relates to drying chambers and has for its object a drying chamber of a very simple construction in which are obtained even and well defined air streams which circulate throughout the chamber portions in which is located the material, this latter being thus evenly dried.

One of the objects of this invention is to provide drying cells or rooms into which materials of any kind may be introduced.

Another object of this invention is to provide drying rooms in which the drying air streams have a well defined direction and act separately or in parallel in different sections of the chamber and on different portions of the material located therein, so that each,

air stream circulates along a comparatively short path, and the air has thus substantially the same character as to temperature and dryness along the whole path of the stream; thus the material acted on by the air near the end of its path is dried substantially to the same extent as that located near the beginning of the path of the air stream,

On the annexed drawing is shown by way of example a portion of a drying plant comprising rooms according to this invention, said portion comprising two adjacent rooms;

Figure 1 is a plan sectional view taken on line 1-1 of Figure 2; Figure 2 is a sectional vertical view taken on line 22 of Figure 1.

As shown on the drawing each of the rooms R, R (which of course may be in any desired number) comprises top, side, front and rear walls, and in one of said walls is provided an opening 8 for the introduction of the material, said opening being properly closed by a door.

The space within each room is divided into three portions, that is, a central or intermediate portion 3 and two side portions 4-4 these latter being intended to receive the material to be treated.

The means for dividing the spaces il-A from space 3 may consist either of part itions as 66' shown in room R, or they may consist of the side walls 9 of boxes, cases,

terial. Of course each of said cases, boxes, or, generally speaking, supporting means for the material, comprises side walls 9 and transverse connecting parts 10, but of course they must not comprise front walls, for the purpose. of providing for the air circulation along the direction shown by the arrows.

In the case the side partitions 6-6 are used, their end portions 7-7 are preferably hinged as shown on the drawing, for the purpose of providing for a large free space at-the time. the material is to be introduced into the room.

The portions 11 of the walls of the room which are opposite to the side spaces 4-4 are preferably inclined as shown by Fig. 1 for the purpose of providing passages having increasing width from the room corners towards its intermediate portion. This arrangement assists in an even distribution and flow of the circulating air which enters into and issues from the side spaces.

In the'central portion of the room, intermediate the partitions 6- 6, if any, and extending across said space 3, is located a partition 2 in which is provided an opening, and an air propeller l is located in this opening; of course this propeller may be of any approved construction and it may be operated by any known or desired means.

When the propeller 1 is operated, it produces an air stream along the space 3, which stream divides" in two parts each passing through one of the spaces 4+4 and acting on the material enclosed in these spaces; the two parts join together at the suction side of the air propeller and thus the air is again circulated through the spaces for the material.

As the extent along which the air streams act on the material 1s com aratively short, the air has substantially tie same characteristics as to dryness and temperature throughout the length of said spaces 4-4' and thus an even action is exerted on the material.

It is to be understood that the operation of the propeller may be reversed or stopped at any desired time andfor any given period, so as to obtain any deslred ventilation timing.

What I claim as my invention and desire to secure by United States Letters Patent 1. In a drying plant, a compartment having walls, a vertical partitionin the central portion of the compartment, the partition having at leastone openin an air impelling means with a horizonta axis positioned in each opening, vertical side partitions at the ends of the first named partition and-at right angles thereto, the-side artitions r0- viding in the room, a-centra space inc udin the said air impelling means, and two si e spaces -for receiving material to be dried, and leaving a communication between V, the central space and the side spaces, at

each of their ends. 2. In a dryingplant, a compartment havmg walls, a vertical partition in the central portion of -the compartment, thepartition having at least one opening, an air impellingmeans wlth a horizontal axis positioned side partitions and side spaces in each opening, vertical side partitions at the ends ,of' the first named partition, the fprovidin a central space, or material to be dried, and at right angles thereto, the side partitions terminating-at a distance from the compartment walls to which they are transverse, the compartment walls being inclined relatively 

